Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SI GROUP INC
702 FM 523, FREEPORT, TX, 77541
Parent company: SI GROUP INC
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
Full release table
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| All values in pounds (lbs) | ||||||
|---|---|---|---|---|---|---|
| Year | Phenol | Methanol | 2,4-Dimethylphenol | Nonylphenol | Toluene | Total (lbs) |
| 2024 | 2,206 | 1,777 | 200 | 2 | 3 | 4,397 |
| 2023 | 1,282 | 109 | 59 | 8 | 5 | 1,666 |
| 2022 | 4,805 | 2,277 | 374 | 8 | 5 | 7,722 |
| 2021 | 5,413 | 1,946 | 511 | 19 | 5 | 8,269 |
| 2020 | 7,126 | 7,671 | 414 | 69 | 1,382 | 17,512 |
| 2019 | 6,741 | 13,692 | 605 | 53 | 163 | 21,788 |
| 2018 | 6,011 | 9,385 | 576 | 1,745 | 2,228 | 20,342 |
| 2017 | 7,135 | 5,702 | 426 | 8,054 | 3,402 | 25,170 |
| 2016 | 6,639 | 17,252 | 3,741 | 9,549 | 2,073 | 39,803 |
| 2015 | 7,611 | 8,650 | 478 | 2,346 | 2,128 | 21,628 |
| 2014 | 9,038 | 4,930 | 575 | — | 2,587 | 17,534 |
| 2013 | 10,409 | 5,997 | 358 | — | 879 | 18,115 |
| 2012 | 10,243 | 6,780 | 509 | — | 845 | 18,849 |
| 2011 | 9,872 | 6,969 | 681 | — | 843 | 18,833 |
| 2010 | 8,736 | 5,721 | 1,865 | — | 861 | 18,635 |
| 2009 | 9,048 | 3,737 | 1,923 | — | 852 | 17,014 |
| 2008 | 8,590 | 3,461 | 1,764 | — | 876 | 16,156 |
| 2007 | 7,123 | 4,449 | 2,485 | — | 797 | 15,732 |
| 2006 | 8,055 | 17,744 | 2,430 | — | 570 | 29,736 |
| 2005 | 5,778 | 13,378 | 1,304 | — | 658 | 21,771 |
| 2004 | 2,799 | 13,693 | 525 | — | 99 | 17,291 |
| 2003 | 2,275 | 15,777 | 381 | — | — | 18,600 |
| 2002 | 2,354 | 14,202 | 286 | — | — | 16,997 |
| 2001 | 3,004 | 15,432 | 232 | — | — | 19,002 |
| 2000 | 3,331 | 17,076 | 220 | — | — | 20,885 |
| 1999 | 3,190 | 12,686 | 212 | — | — | 16,519 |
| 1998 | 10,184 | 5,053 | 1,283 | — | — | 16,946 |
| 1997 | 14,745 | — | 1,741 | — | — | 16,486 |
| 1996 | 14,170 | — | — | — | — | 14,170 |
| 1995 | 14,904 | — | — | — | — | 14,904 |
| 1994 | 15,393 | — | — | — | — | 15,393 |
| 1993 | 24,161 | — | — | — | — | 24,166 |
| 1992 | 21,934 | — | — | — | — | 21,934 |
| 1991 | 20,327 | — | — | — | — | 20,327 |
| 1990 | 25,506 | — | — | — | — | 26,657 |
| 1989 | 21,459 | — | — | — | — | 22,209 |
| 1988 | 5,810 | — | — | — | — | 6,810 |
| 1987 | — | — | — | — | — | 16,438 |
▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.